Sash-cord fastener.



H. BROWN & R. BARTON.

SASH CORD FASTENER.

APPLIOATION FILED MAR. 10, 1909.

Patnted Dec. 12, 1911.

2' SHEETS-SHEET 1.-

COLUMBIA PLANOGRAPH C0., WASHINGTON. D. C.

H. BROWN & R. BARTON. SASH CORD PASTENER.

APPBIOATION FILED MAR. 10. 1909.

1,01 1,734. Patented 111G. 12,1911.

2 SHEETS-SHEET 2.

lfamzll'e'm Brawn F015 1717 Barton COLUMBIA PLANOCIRAFH CO..WASMING'MN.D. C.

HAMILTON BROWN AND ROBERT BARTON,

OF GLASGOW, SCOTLAND.

sAsrr-coan FASTENER.

Specification of Letters Patent.

Patented Dec. 12, 1911.

Application filed March 10, 1909. Serial No. 482,453.

To all whom it may concern:

Be it known that we, HAMILTON BROWN and ROBERT BARTON, subjects of theBritish King, residing at Glasgow, Scotland, have invented certain newand useful Improvements in Sash-Cord Fasteners; and we do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to improvements in cord or cable detachingdevices for that class of window sashes adapted for sliding and alsoswinging in the window frame.

One of the principal objects of the invention consists in the provisionof a device of the above character which is arranged to be automaticallylocked to the sash when the same is swung into place, or unlocked fromthe sash when the same is swung outwardly from the frame.

A further object of the invention is to provide a device of saidcharacter wherein the member attached to the cord is automaticallylocked in a suitable position in the groove in which the sash slideswhen the sash is disengaged from said member.

A still further object is to provide such a member which is arranged tobe unlocked when it is attached to the sash, thereby facilitating theconnection and disconnection of the sash with the window cords by reasonof the fact that the device attached to the cord is always in positionto be attached to the sash.

The invention will be more fully described in connection with theaccompanying drawings and the novel features thereof will be moreparticularly pointed out in the appended claims.

In the drawings :Figure 1 .is a perspective view of a window frame withboth sashes in their lower position and the front sash swung outwardly,Fig. 2 is a front View of one of the devices locked to the window sashwith the parts in the position before the sash is swung outwardly, Fig.3 is a view similar to Fig. 2 illustrating the sash when the same isswung outwardly and the device attached to the cord locked to the sashframe, Fig. 4 is a sectional view on line 44 of Fig. 3, and Fig. 5 is aperspective View of an element to which the device attached to the cordis locked when the sash is detached from said device.

Like characters of reference designate similar parts throughout thedifferent figures of the drawings.

As shown the device of our invention includes an element 1 adapted to besecured in the groove of the frame in which the sash slides. Saidelement is in the form of a plate having flanges 2, 3, in which bolts,openings, or apertures 4, 5 respectively are provided. Said element 1 islocated preferably below the cut-away portion of the ridges 6 of theframe between which the sash slides and its function is to lock thedevice to which the cords 7 are attached in such a position as toreadily permit the sash to be attached and detached to and from devicesas will hereinafter more fully appear.

Each of the sash frames is provided with a member 8 having a leverengaging portion, preferably in the form of a notch 9 and an attachingportion preferably in the form of a dove-tailed recess 10. Said membersare attached to the outer bases of the sash which lie in the grooves 11of the frame.

A device indicated as a whole at 12 is adapted to be secured to thecables or cords 7 and to fit between the flanges 2, 3 of the element 1when lying abreast thereof. Each of said devices is preferably providedwith two locking bolts 13 and 14 to be shifted into and out of lockingengagement with the element 1 by passing through the openings 4 and 5thereof. The bolt 13 is provided with a slot 16 having concave andconvex end walls 17 18 respectively and the bolt 14 is provided with aslot 19 having both end walls 20 and 21 of convex conformation as willbe clearly seen by reference to Fig. 1 or 2. A lever 22 is pivotallymounted, preferably between said bolts at 23, and is provided with anarm 24 projecting into the slot 16 and adapted for engagement with thewalls thereof, and the rocking lever is also provided with a long arm 25projecting through the slot or recess 19 and beyond the same and adaptedfor engagement with the curved walls 20 and 21 thereof. The arm 25 isprovided with a suitably curved rear face 26 for engagement with thewall 20 and with a suitably curved front face for engagement with thewall 21.

27 designates that portion of the arm 25 which projects through andbeyond the de vice 12 for engagement with the notch 9. A suitably formeddove-tailed portion 28 is provided on the device 12 for engagementwithin the clove-tailed recess 10 of the member 8. The member or plate 8is cut away at its upper rear edge so that the rear wall 29 of the notch9 is not as deep as the front wall 30 of said notch, as will be clearlyseen by reference to Fig. 2.

Although the operation may be clear from the foregoing it may be brieflyrecapitulated as follows :-In order to swing a sash outwardly in themanner shown in Fig. 1 the same is lowered to the bottom of the frame tobring the device 12 abreast of the element- 1 as shown in Fig. 2. Whenthe sash is swung outwardly, the wall 29 of the notch 9 engages the end27 of the long arm of the lever and swings the same from the positionshown in Fig. 2 to the position shown in Fig. 3. This movement of thelever shoots the bolts 13 and 14: into the openings 1 and 5 and locksthe device 12 to the element 1. The sash is swung outwardly as shown forany desired purpose. The device 12 remains locked to the element 1 sothat when the sash is again swung into the frame the device 12 is heldin such a position that the interlocking dove-tailed portions 10 and 28will register and the wall 30 will engage the end 27 of the lever 22 andswing the same into the position shown in Fig. 1.

Having particularly described our invention what we claim is 1. A devicefor detachably securing window cords to a swinging slidable window sashcomprising in combination, a locking element anchored in a sash grooveof the window frame and provided with bolt open ings, a locking devicesuspended by a sash cord and provided with bolts adapted to haveengagement within said openings, a lever pivoted to said device betweensaid bolts and engaging the same, and an element on the sash foractuating said lever, said element and device having means wherebyconnection and disconnection between the element and device are effectedupon move ment of the sash with respect to its frame, substantially asdescribed.

2. A device for detachably securing window cords to a swinging slidablewindow sash comprising in combination, a locking element anchored in asash groove of the window frame and provided with an engaging portion, alocking device suspended by a sash cord and provided with a bolt adaptedfor engagement with said portion, a lever carried by said device andengaging said bolt, and a member on said sash for actuating said lever,said member and device having means whereby connection and disconnectionof the member and device are effected upon movement of the sash withrespect to the window frame, substantially as described.

3. A device for detachably securing window cords to a swinging slidablewindow sash comprising in combination, a flanged locking plate anchoredin a sash groove of the frame and provided with openings in its flanges,a locking device attached to a cord and provided with oppositely movablesliding bolts provided with slots and adapted for engagement with theopenings of said flanges, a lever pivoted to said device between saidbolts and having arms engaging the end walls of said slots, one of saidarms projecting through the slot cooperating therewith, and an elementon said sash provided with a notch for engaging the projecting portionof said lever for operating said bolts in opposite directions, saidelement and device having interlocking means for effecting connectionand disconnection between the element and device when the sash is movedwith respect to the window frame, substantially as described.

In testimony whereof, we affix our signatures, in presence of twowitnesses.

HAMILTON BROWVN. ROBERT BARTON. Witnesses:

I. H. PEARSON, THOMAS AITKEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

